Means of mounting wheels or pulleys on axles or shafts



Dec. 8, 1925. 1,564,941

c. H. CLARE MEANS OF MOUNTING WHEELS 0R PULLEYS 0N AXLES 0R lSI'IAFTS Filed Sept. 1S, 1924 'Jn/verdon CHnRL es HENRY CLARE,

flrromve vs Patented Dec. 8, 1925i.

f )UNITI-:n

CHARLESY HENRY CLARE, Y or @saison/n, l Innereien.; i

` 'MEANS or MooN'rING WHEELS on'PULnEYsoN 'Axims oiR'sHAF'rs.

Application filed september 1s, 1924. Asei-iai No. 738,510.

To all whom t may concern.'

Be it known that I, CHARLES HENRY CLARE, a subject of-theKing of Great Brit-v ain, residing at 20 l Kentr Street, Lower Broughton,`Salford, in the county of Lancaster, England, have vinvented certainV new and useful Improvements inV Means of Mounting IVheels or Pulleys on Axles or Shafts, of which the following is a specifica'- tion, reference being had therein to the accompanying drawing.

This invention relates to means of mounting wheels or pulleys on axles or shafts.

In the usual method of such mountings, more particularly in wheels for `motor vehicles, the axle is formed withv a coned orY tapered portion near each end in which a keyway is provided and a screw threaded portion at each extreme end, the hub of the wheel beingl correspondingly coned or tapered interiorly to fit the coned portion of the axle and also provided with a key-V way for the reception of a key for keying the wheel non-rotatably on the axle. A nut is screwed on to the threaded end of the axle to keep the wheel in Iposition. Y Y In another construction, a plurality of grooves are formed in the shaft into which corresponding projections interiorly of the hub areadapted to engage.

In both these constructions, however, owing to the excessive strains towhich the wheel and shaft are subjected lin operation, great wear takes place between the key and keyway or between the grooves and projections, especially where the nut is not sufficiently tight or become loose as not to keep the conedor tapered portions of thev wheel hub and axle in close relation to one another.

The object of this invention is to provide improved vmeans whereby play between a wheel or -pulley and an axle or shaft is eliminated. y l

According vto this invention,l an axle or shaft is characterized by a coned or tapered portion intermediate of two oppositely directed screw threaded portions ofdiferent diameters whereby a wheel or pulleyor the like correspondingly screw threaded and tapered can be rotated into position over .one screw thread in one direction and a securingnut :rotated vinto position over the otherscrew thread in the opposite direction. v The drawing filed herewith is a part sectional elevationpof one form of axle or shaft and lcomplementary wheel or pulley mounted on yeach endthereof in accordance with .thisinventionV Y a is an axle or shaft, l) a coned or tapered portion'near each end thereof and 'intermediate of two oppositely directed screw threaded portions of 'different diameters ok and (l. yThe inner screw threaded portion. c. being of larger diameter than the outer screw threaded end d. The hub or boss of Cil the wheel or pulley e or the like is cor-VA respondingly screw threaded interiorlyat f f for a portion of its length to -engagerthe thread o and tapered for the remainder of its length at g to seat onl to the tapered por-prr direction to thatin which the wheel or pulley screws intov position and, when once Athe wheel or Vpulley and'likewise the nut has be seen vthat the securing i nut 7L) screws into position in. the opposite aso, i

been screwed tightly home, any resistance to v the wheel and shaft when in rotation, only serves to tighten bothnthe` wheel and the's"5 nut. e Y Then 'applied to the axle of a motor ve-` hicle wherey av Wheel is mounted at each f end ot an axle', as shown, the twor screw lthreaded portionsat one end arev preferably eachV 'directed in opposite relation to itsy equivalentl screw threaded portion at the other en'd so that in use, when the axle and wheels'are rotating together, the frictional resistance of the road willact on each wheel 95.

i the axle and wheels in theexample shown to in the same direction, for example, assuming `ontheirtapered seats and if theV nuts 71, are

screwed up to the wheelswhen saidv wheels i 'ad e have tightened themselves to their full limit, there cannot be any play When the axle is rotated in the reverse direction and even if there was, Vthe nutsY h would then tighten themselves against the Wheels.

lVhat I claim and desire to secure by Letters Patent is In a Wheel and axle mounting, an axle, a

tapered portion on said axle, oppositely dil0 reeted screw threaded portions of 'different diameters on each side of said tapered portion, a Wheel hub having'fa screw threaded engagement With said screw threaded portion of larger diameter, a tapered portion on the hub engaging thehtapere'd portion of 15 the yaxle, and a nut engaging the screw threaded portlon of less diameter.

In testimonj)7 whereof aifix my signature.

CHARLES HENRY CLARE. 

